Shiro Kara Daibāzu: Hulk SUBvsYema Pearldiver
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Measurements
Catalog photos are all shot at the same flattering size. These aren't: every case below shares one millimeter scale.

Daibāzu: Hulk SUB

Pearldiver
Diameter
40mm
38mm
Lug-to-Lug
48mm
46mm
lowest
Thickness
13.2mm
lowest
14mm
Water Resistance
100m
100m
Power Reserve
41h
n/a
MSRP
$508
$491
lowest
Movement
Seiko NH35
Automatic
Case
4 specsCrystal & Dial
1 specsMovement
2 specsPricing
1 specsReviews
Synthesized for each watch independently from owner discussions, enthusiast forums, written reviews, and video reviewers.
Owners widely praise the Shiro Kara Daibāzu: Hulk SUB for its dial printing, insert, and rehaut finishing, with one owner noting good timegrapher numbers. One owner found the watch waterproof after five days, and another reported it was still running on day six. Some owners note a slightly off-centered 12 marker, and one felt the crystal was not the best, though still looked great. One owner expressed dissatisfaction with the bracelet quality. Overall, owners rate the Shiro Kara Daibāzu: Hulk SUB highly for its dial, insert, and rehaut finishing, with some noting good water resistance.
Owners widely praise the Yema Pearldiver's vintage aesthetic, good dimensions with a sub-40mm case and short lug-to-lug, and a clean dial. Some owners report quality control issues including non-running movements, though others have had positive experiences with customer service and received accurate replacements. The bracelet clasp is described as "pretty cheap" by one owner, and another found the finishing on the bezel and dial hands rough. Opinions are split on the design, with some finding it pedestrian and the faux lume color too dark, while others appreciate its uncluttered look and non-minute marker bezel. Overall, owners rate the Yema Pearldiver highly for its vintage appeal and wearable dimensions, despite some concerns regarding quality control.
The Yema Pearldiver is praised for its vintage-inspired aesthetic and competitive price point. Reviewers noted a clash between the white and cream colorways on the dial.
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